Biased decision-making cannot be avoided
We as humans are well aware that we are driven by cognitive biases which impact also the outcome from decision-making processes. We have natural preferences, are too optimistic, or often go even by gut feelings when it comes to decision-making. In project management, this phenomenon is often leading to what is called the planning fallacy as we are usually underestimating efforts that will be required to deliver work items, we often underestimate the cost of delivery, and we underestimate risks that may impact project outcomes. Often - and we can see an increase over the years - such flaws are leading to project delivery failures.